Patent classifications
B29D11/00442
Method for preparing a molded polymeric article
Provided is a method for preparing a polymeric article including introducing a polymerizable composition into a mold; sealing the composition within the mold using a sealing means; placing the mold into a convection cure oven; subjecting the polymerizable composition to a cure cycle sufficient to partially cure the composition; extracting the mold from the convection cure oven; optionally, removing the sealing means from the mold; placing the mold into an auxiliary curing chamber which is placed into the convection cure oven, or placing the mold into an auxiliary curing chamber which is within the convection cure oven; subjecting the polymerizable composition to a further cure cycle to complete polymerization of the composition, thereby forming a cured polymeric article; and removing the cured polymeric article from the mold.
METHOD FOR PRINTING A MULTIFOCAL LENS
Method for printing a multifocal lens (1) with a sharp transition region, comprising a base lens (2) and at least one segment lens (3) comprising the following steps:—virtually slicing the three-dimensional shape of the multifocal lens (1) into two-dimensional slices (9), resulting in a number Nbase of slices ji, . . . , jNbase of the base lens (2) and a number Nsegment of slices i1 . . . , iNSegment of the at least one segment lens (3),—providing a number Nfinish of layers printed as surface-finishing layers (4),—printing the base lens (2) in a base-lens printing step and consecutively printing the segment lens (3) in a segment-lens printing step on top of the base lens (2) through a targeted placement of droplets of printing ink at least partially side by side, wherein in the base-lens printing step first Nbase-Nfinish structure layers (5) and then Nfinish surface-finishing layers (6) are printed and in the segment-lens printing step first NsegmentNfinish structure layers (7) and then Nfinish surface-finishing layers (8) are printed.
METHOD FOR PRODUCING SPECTACLE LENS, SPECTACLE LENS, AND SPECTACLES
In the method for producing a spectacle lens, the spectacle lens is a cured product obtained by curing a polymerizable composition containing 5-(isocyanatomethyl)bicyclo[2.2.1]hept-2-ene and one or more polythiol compounds, the method includes preparing the polymerizable composition by a preparation process including a first mixing step of mixing 5-(isocyanatomethyl)bicyclo[2.2.1]hept-2-ene and a polythiol compound with each other in the presence of a first catalyst that catalyzes a thiol-ene reaction, and a second mixing step of mixing a second catalyst that catalyzes a thiourethanization reaction with a mixture obtained in the first mixing step; and subjecting the polymerizable composition to a curing treatment.
Optical element and optical apparatus
An optical element includes a first resin portion, a second resin portion provided in contact with the first resin portion, an adhesion portion, a first base material, and a second base material, the first resin portion, the second resin portion, and the adhesion portion being provided between the first base material and the second base material. The adhesion portion is in contact with the second resin portion and one of the first base material and the second base material. When an elastic modulus of the first resin portion is denoted by E1, an elastic modulus of the second resin portion is denoted by E2, and an elastic modulus of the adhesion portion is denoted by E3, the optical element satisfies a relationship of E3<E2<0.9×E1.
SILICONE OPTICS
Silicone-containing light fixture optics. A method for manufacturing an optical component may include mixing two precursors of silicone, opening a first gate of an optic forming device, moving the silicone mixture from the extrusion machine into the optic forming device, cooling the silicone mixture as it enters the optic forming device, filling a mold within the optic forming device with the silicone mixture, closing the first gate, and heating the silicone mixture in the mold to at least partially cure the silicone. Alternatively, a method for manufacturing an optical component may include depositing a layer of heat cured silicone optical material to an optical structure, arranging one or more at least partially cured silicone optics on the layer of heat cured silicone optical material, and heating the heat cured silicone optical material to permanently adhere the one or more at least partially cured silicone optics to the optical structure.
Method for Preparing a Molded Polymeric Article
Provided is a method for preparing a polymeric article including introducing a polymerizable composition into a mold; sealing the composition within the mold using a sealing means; placing the mold into a convection cure oven; subjecting the polymerizable composition to a cure cycle sufficient to partially cure the composition; extracting the mold from the convection cure oven; optionally, removing the sealing means from the mold; placing the mold into an auxiliary curing chamber which is placed into the convection cure oven, or placing the mold into an auxiliary curing chamber which is within the convection cure oven; subjecting the polymerizable composition to a further cure cycle to complete polymerization of the composition, thereby forming a cured polymeric article; and removing the cured polymeric article from the mold.
Casting with deformable molds
A curable liquid is provided to a mold having a rigid surface disposed opposite a deformable surface. The curable liquid contacts the rigid surface and the deformable surface. The deformable surface is shaped according to a surface profile by driving actuators configured to move the deformable surface. The curable liquid is cured while the deformable surface is shaped according to the surface profile.
Ultraviolet Curing Apparatus
A curing apparatus (400) includes a housing (402) having a sidewall (404) with an inlet (408) spaced apart from an outlet (410) along an axis, the housing defining an interior chamber (406). At least one opening (419) extends through the sidewall of the housing, for example from the inlet to the outlet. At least one ultraviolet radiation source (426) is operative for transmitting ultraviolet radiation into the interior chamber. At least one nozzle (436) is in flow communication with the interior chamber. The at least one opening is an open slot configured to receive a portion of an article carrier moving along a guideway outside of the housing such that an article supported by the article carrier moves through the interior chamber from the inlet to the outlet on the portion of the article carrier extending through the slot.
FIBER OPTIC INTEGRATED-LIGHT DIFFUSERS FOR SENSING APPLICATIONS
Embodiments include a fiber optic probe comprising an optical fiber, and a sensor component attached to the optical fiber, the sensor component including an asymmetric microlens array imprinted on a stimuli-responsive hydrogel. Embodiments further include a method of fabricating a fiber optic probe comprising depositing a stimuli-responsive hydrogel precursor solution on a substrate mold, the substrate mold including a concave asymmetric microlens array; contacting an end of an optical fiber with the stimuli-responsive hydrogel precursor solution deposited on the substrate mold; and exposing the end of the optical fiber and the stimuli-responsive hydrogel precursor solution to light to form a stimuli-responsive hydrogel sensor imprinted with a convex asymmetric microlens array and attached to the end of the optical fiber. Embodiments further include systems comprising the fiber optic probes.
Fiber optic integrated-light diffusers for sensing applications
Embodiments include a fiber optic probe comprising an optical fiber, and a sensor component attached to the optical fiber, the sensor component including an asymmetric microlens array imprinted on a stimuli-responsive hydrogel. Embodiments further include a method of fabricating a fiber optic probe comprising depositing a stimuli-responsive hydrogel precursor solution on a substrate mold, the substrate mold including a concave asymmetric microlens array; contacting an end of an optical fiber with the stimuli-responsive hydrogel precursor solution deposited on the substrate mold; and exposing the end of the optical fiber and the stimuli-responsive hydrogel precursor solution to light to form a stimuli-responsive hydrogel sensor imprinted with a convex asymmetric microlens array and attached to the end of the optical fiber. Embodiments further include systems comprising the fiber optic probes.